The term ARTICHOKE JERUSALEM is a vegetable that is a variety of sunflower. It is also known as a Jerusalem artichoke, sunchoke, or earth apple. The crossword solutions for this term are TUBER (5 letters), HEART (5 letters), and HEARTS (6 letters). The TUBER refers to the edible root of the plant, which is similar in shape to a potato. The HEART is the edible part of the plant, which is found at the base of the stem. The hearts are the edible parts of the plant that are found in the center of the flower head.